ASoC: meson: axg-card: remove useless check on codec

While checking cpus before dereferencing the pointer is required, it is
not necessary for codecs. 'codec' can't possibly be NULL in the loop
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/meson/axg-card.c

@@ -118,7 +118,6 @@ static void axg_card_clean_references(struct axg_card *priv)
 			if (link->cpus)
 				of_node_put(link->cpus->of_node);
 			for_each_link_codecs(link, j, codec)
-				if (codec)
 				of_node_put(codec->of_node);
 		}
 	}